PDF Watermark
Stamp a text watermark on every page.
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Private
Files never leave your browser.
Fast
Native client-side processing.
Free forever
No signup, no watermarks.
About PDF Watermark
Add a custom text watermark (e.g. CONFIDENTIAL, DRAFT) to every page of a PDF. Choose opacity, angle and size. Client-side with pdf-lib.
PDF Watermark runs entirely in your browser using PDF Tools technology. Your files are processed locally and never uploaded to a server — there is no cloud, no storage, and no account required. Nothing about your file is sent anywhere.